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Patent
   D260280
Priority
Jun 05 1978
Filed
Jun 05 1978
Issued
Aug 18 1981
Expiry
Aug 18 1995
Inventors
Campbell, …
Assg.orig
GSW Limite…
Assg.curr
GSW Limite…
Entity
unknown
Referenced by
26
References
9
Maint.:
n/a
The ornamental design for a check valve casing, as shown.

FIG. 1 is a top perspective view of a check valve casing showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof.
INVENTORS:

Campbell, John F.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D274082, Aug 17 1981 Safety flush valve fitting for automotive air conditioner
D274083, Aug 17 1981 Safety flush valve fitting for automotive air conditioner
D274746, Aug 17 1981 Safety flush valve fitting for automotive air conditioner
D287615, Jun 08 1983 Marpac Industries, Inc. Combined valve body and splash guard
D321241, Jun 16 1988 GP COMPANIES, INC Combined pressure and thermal safety valve
D419217, Oct 19 1998 Check valve
D499464, Jan 30 2004 Camco Manufacturing, Inc. Pressure regulator
D500840, Feb 14 2003 DYMCO CO , LTD Valve body of gas overcharge prevention system
D549118, Jul 08 2005 GLAS AMERICAS LLC Pressure regulator
D576704, Jun 12 2006 Neoperl GmbH Sanitary check valve
D594530, Nov 28 2005 Campbell Manufacturing, LLC Check valve with contoured body
D623723, Apr 02 2009 Parker-Hannifin Corporation Reduced bleed check valve
D624157, Apr 02 2009 Parker-Hannifin Corporation Minimum bleed check valve
D647596, Nov 28 2005 Campbell Manufacturing, LLC Check valve with contoured body
D685877, Jul 19 2011 SMC Corporation Fluid pressure cylinder
D690391, Sep 21 2011 Danfoss A/S Thermostatic valve insert
D745114, Jan 22 2014 FNA GROUP, INC Adjustable pressure regulator
D777885, Dec 03 2015 NINGBO AOLEISHI SANITARY WARE CO., LTD.; NINGBO AOLEISHI SANITARY WARE CO , LTD Quick-install mechanism above countertop for faucet
D871544, Mar 30 2017 COPELAND COMFORT CONTROL LP Check valve
D872231, Dec 17 2018 PNC BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT Solenoid tube
D872233, Mar 30 2017 COPELAND COMFORT CONTROL LP Check valve
D895773, Oct 10 2017 Reflex Instruments Asia Pacific PTY LTD Check valve
D921157, Mar 09 2019 Dishwasher back flow check valve
D952107, Dec 15 2020 Vista Water Group, LLC Backflow preventer
ER3453,
ER782,
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1360960,
2296135,
274787,
2945508,
3189040,
3503418,
4168723, Nov 18 1977 Qualitrol Corporation Pressure relief valve
D242709, Sep 08 1975 Adjustable pressure relief valve
D242710, Sep 08 1975 Adjustable pressure relief valve
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 05 1978GSW Limited/Limitee(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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